在 android 中更改视图的 position

Question

I'm trying to build a simple app where there's a button and each time it gets clicked it changes its location on the screen. I don't have any experience at all developing for android so I don't know how to change Views' properties etc.

Answer 1

Try this and enjoy:)

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/my_relativeLayout"  // add id to RelativeLayout
    android:orientation="vertical"
    tools:context=".MainActivity"
    android:gravity="center">


    <Button
        android:id="@+id/my_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Click !" />


</RelativeLayout>

MainActivity.kt

     binding.myBtn.setOnClickListener {
        
      val random = Random
      val relativeLayout = findViewById<RelativeLayout>(R.id.my_relativeLayout)
            
         binding.show.x = random.nextInt(relativeLayout.width - binding.show.width).toFloat()
         binding.show.y = random.nextInt(relativeLayout.height - binding.show.height).toFloat()
        
 }